netdev - Re: iproute equivalent of replacing address with ifconfig?

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Date:	Mon, 18 May 2015 10:46:58 -0700
From:	Cong Wang <cwang@...pensource.com>
To:	Michael Tokarev <mjt@....msk.ru>
Cc:	Network Development <netdev@...r.kernel.org>
Subject: Re: iproute equivalent of replacing address with ifconfig?

On Mon, May 18, 2015 at 7:03 AM, Michael Tokarev <mjt@....msk.ru> wrote:
>
> ip addr command however does not have the ability to "replace"
> an address, there are two commands for that, del and add.
> So in order to change address, one have to delete and add,
> a two-step process.  Adding an address before deleting might
> not work as the new address should not conflict with old
> address in any way, or else addition fails.

Are you sure?

$ ip addr help
Usage: ip addr {add|change|replace} IFADDR dev STRING [ LIFETIME ]
                                                      [ CONFFLAG-LIST ]
[...]
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